TY - GEN AU - Gravish,Nick AU - Umbanhowar,Paul B AU - Goldman,Daniel I TI - Force and flow at the onset of drag in plowed granular media SN - 1550-2376 PY - 2015///0415 N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S UR - https://doi.org/10.1103/PhysRevE.89.042202 ER -